I
V
V
IV. TROUBLE SHOOTING GUIDE
Motorcycle won’t start - check for:
Spark at plug - if weak or no spark, check coil ground, disconnect kill switch, and check ohm readings for coil & stator.
Fouled spark plug - replace, adjust jetting as needed.
Fuel flow to carburetor - if no flow from hose, make sure there is gas in tank and fuel valve is on. Make sure choke is on
if engine is cold. Clean fuel filter and/or remove debris from fuel valve and hose. Clean carburetor.
Plugged air filter - clean and reoil.
Low compression - check reeds, combustion chamber o-ring, piston and rings.
Motorcycle runs poorly - check:
Jetting - use choke and plug reading to adjust as needed.
Spark plug gap and condition - make sure coil has good ground. Replace plug and adjust jetting as needed.
Spark - if spark seems weak with a new plug, check coil ground and ohm readings for coil and stator assemblies.
fuel - make sure fuel flows readily from gas line. Remove float bowl and check for dirt and float operation & adjustment.
Air leaks - spray carburetor cleaner around carburetor, intake boots and reed block and see if idle changes.
Air cleaner - make sure air cleaner is clean and properly oiled. Make sure oil isn’t dripping into carburetor.
Compression - if compression is low, check condition of reeds and then replace piston ring and/or piston.
Exhaust - if power is down, check for large dents, blown out silencer packing or heavy carbon fouling.
Engine - make sure motor mount bolts are tight.
Brakes are dragging or not working - check for:
Mud or dirt jamming piston - disassemble caliper, clean thoroughly and lubricate.
Worn pads - adjust caliper freeplay and/or replace brake pads
Worn cables - clean and lubricate cables or replace as needed.
Suspension not working well - check for:
Oil leaks from forks or shock shaft - have forks or shock serviced.
Check for proper sag adjustment - adjust spring preload or install heavier or lighter springs as needed.
Adjust shock settings - adjust compression and rebound settings for track conditions.
Check shock bushings - replace worn or binding shock bushings
Binding forks - loosen front axle pinch bolt, bounce forks several times and tighten pinch bolt.
Loose steering stem - check and tighten steering adjusting nut
Loose swingarm bolt - Tighten swingarm bolt, check swingarm for proper movement. Clean/grease bushings as needed.
V. PARTS & ACCESSORIES
1. Recommended spares
tires, pirelli/hard pack, bridgestone/soft pack
tubes
grips
throttle assembly with tube
brake and throttle cables
kickstarter gears & with spring and clip
gaskets & o-rings
chain with master link & sprockets
jet selection
piston, piston pin, ring(s), rod bearing, circlips
brake pads
brake lever assembly
handlebars
clutch shoes & spring washers
spark plugs
air cleaners, spare
clutch woodruff key
clutch shoe bolts
clutch drum
Page 43
To Next Page
Loading...